Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Delaware

Precipitation Rankings, September 1970

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1970
1-Month
1.02"
(25.91mm)
3.60"
(91.44mm)
-2.58"
(-65.53mm)
5th Driest
Driest since:
1941
124th Wettest
Wettest since:
1935
Aug–Sep 1970
2-Month
3.69"
(93.73mm)
8.19"
(208.03mm)
-4.50"
(-114.30mm)
6th Driest
Driest since:
2005
123rd Wettest
Wettest since:
1928
Jul–Sep 1970
3-Month
8.18"
(207.77mm)
12.50"
(317.50mm)
-4.32"
(-109.73mm)
11th Driest
Driest since:
1968
118th Wettest
Wettest since:
1938
Jun–Sep 1970
4-Month
13.80"
(350.52mm)
16.14"
(409.96mm)
-2.34"
(-59.44mm)
42nd Driest
Driest since:
1968
87th Wettest
Wettest since:
1938
May–Sep 1970
5-Month
16.25"
(412.75mm)
19.70"
(500.38mm)
-3.45"
(-87.63mm)
31st Driest
Driest since:
1964
98th Wettest
Wettest since:
1989
Apr–Sep 1970
6-Month
21.08"
(535.43mm)
23.18"
(588.77mm)
-2.10"
(-53.34mm)
45th Driest
Driest since:
1986
84th Wettest
Wettest since:
1989
Mar–Sep 1970
7-Month
25.08"
(637.03mm)
27.16"
(689.86mm)
-2.08"
(-52.83mm)
43rd Driest
Driest since:
1986
86th Wettest
Wettest since:
1989
Feb–Sep 1970
8-Month
27.50"
(698.50mm)
30.20"
(767.08mm)
-2.70"
(-68.58mm)
40th Driest
Driest since:
1930
89th Wettest
Wettest since:
1989
Jan–Sep 1970
9-Month
29.19"
(741.43mm)
33.69"
(855.73mm)
-4.50"
(-114.30mm)
27th Driest
Driest since:
1930
102nd Wettest
Wettest since:
1989
Dec 1969–Sep 1970
10-Month
36.74"
(933.20mm)
37.15"
(943.61mm)
-0.41"
(-10.41mm)
63rd Driest
Driest since:
1986
65th Wettest
Wettest since:
1958
Nov 1969–Sep 1970
11-Month
38.99"
(990.35mm)
40.22"
(1,021.59mm)
-1.23"
(-31.24mm)
57th Driest
Driest since:
1930
71st Wettest
Wettest since:
1958
Ties: 2005
Oct 1969–Sep 1970
12-Month
40.32"
(1,024.13mm)
43.37"
(1,101.60mm)
-3.05"
(-77.47mm)
48th Driest
Driest since:
1986
80th Wettest
Wettest since:
2003
Apr 1969–Sep 1970
18-Month
66.24"
(1,682.50mm)
66.48"
(1,688.59mm)
-0.24"
(-6.09mm)
63rd Driest
Driest since:
1966
65th Wettest
Wettest since:
2010
Oct 1968–Sep 1970
24-Month
83.40"
(2,118.36mm)
86.63"
(2,200.40mm)
-3.23"
(-82.04mm)
44th Driest
Driest since:
1966
83rd Wettest
Wettest since:
2004
Oct 1967–Sep 1970
36-Month
116.31"
(2,954.27mm)
129.92"
(3,299.97mm)
-13.61"
(-345.70mm)
13th Driest
Driest since:
1966
113th Wettest
Wettest since:
1935
Oct 1966–Sep 1970
48-Month
164.31"
(4,173.47mm)
173.15"
(4,398.01mm)
-8.84"
(-224.54mm)
20th Driest
Driest since:
1966
105th Wettest
Wettest since:
1936
Oct 1965–Sep 1970
60-Month
196.18"
(4,982.97mm)
216.34"
(5,495.04mm)
-20.16"
(-512.07mm)
8th Driest
Driest since:
1966
116th Wettest
Wettest since:
1937

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